MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f92b54d3c97015bf592fc80c6a7cea7eed7d35d423fbbb612e84bb91c92b8320. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
404Keylogger
Vendor detections: 7
| SHA256 hash: | f92b54d3c97015bf592fc80c6a7cea7eed7d35d423fbbb612e84bb91c92b8320 |
|---|---|
| SHA3-384 hash: | 500f42a1458b3bf18e8992415646b7f4a6757142b6c9908701da492aa558ee9db2cf2f30b9c1e9bef8423d7a3a99a8ad |
| SHA1 hash: | 50841350fd090699d25b377fb80fb9f4fa124cc4 |
| MD5 hash: | 2978510bf17fa0d135d00fe79ef89a1f |
| humanhash: | fish-december-kitten-september |
| File name: | Bank Transfer Form -pdf- .exe |
| Download: | download sample |
| Signature | 404Keylogger |
| File size: | 292'352 bytes |
| First seen: | 2020-08-08 08:22:55 UTC |
| Last seen: | 2020-08-08 08:54:09 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 6144:AATgiWpiA76SNzyCaWygjL57T6KoexxJzNq8MBPSG:AwgrpiAWMaOvx6K9xoX |
| Threatray | 176 similar samples on MalwareBazaar |
| TLSH | 435401B947ECAFB7CDFC17F8B8CD314113BC5646A513E3580D8974BA24967080AE17A6 |
| Reporter |  abuse_ch |
| Tags: | 404Keylogger ESP exe geo |
abuse_ch
Malspam distributing 404Keylogger:HELO: employmentlinknepal.com
Sending IP: 23.106.223.20
From: Accounts <madhukar@employmentlinknepal.com>
Subject: Fwd: Formulario de transferencia bancaria
Attachment: Bank Transfer Form -pdf- .arj (contains "Bank Transfer Form -pdf- .exe")
Intelligence
File Origin
# of uploads :
2
# of downloads :
114
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Setting a keyboard event handler
Reading critical registry keys
Connection attempt
Enabling autorun by creating a file
Result
Threat name:
404Keylogger AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected 404Keylogger
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Status:
Malicious
First seen:
2020-08-08 06:40:57 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 166 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
10/10
Tags:
spyware
Behaviour
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Looks up external IP address via web service
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | CAP_HookExKeylogger |
|---|---|
| Author: | Brian C. Bell -- @biebsmalwareguy |
| Reference: | https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar |
| Rule name: | MAL_Envrial_Jan18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Encrial credential stealer malware |
| Reference: | https://twitter.com/malwrhunterteam/status/953313514629853184 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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